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The European Physical Journal A

, Volume 32, Issue 4, pp 543–547 | Cite as

Helicity correlated asymmetries caused by optical imperfections

  • K. AulenbacherEmail author
PAVI 2006

Abstract.

False asymmetries in electron scattering experiments utilizing photoelectron sources are generated by imperfections of the light polarization optics. The false asymmetries are amplified by an analyzing power of the photocathodes. We have demonstrated compensation techniques which allow to approach zero intensity asymmetry with good stability. Even in the absence of analyzing powers fluctuations may be generated by more subtle effects like varying interference patterns of the exciting laser beam.

PACS.

42.25.Ja Polarization 78.20.Jq Electrooptical effects 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  1. 1.Institut für KernphysikJohannes-Gutenberg Universität MainzMainzGermany

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